基于MaxEnt和ArcGIS的山西省连翘适宜性区划研究  

Study on Suitability Regionalization of Forsythia suspensa in Shanxi Province Based on MaxEnt and ArcGIS

作　　者：徐子豪 侯蕾 雷子莹 张俊 武延慧 张小波[2] 史婷婷[2] 张朔生 杜晨晖 裴香萍 贺润丽 Xu Zihao;Hou Lei;Lei Ziying;Zhang Jun;Wu Yanhui;Zhang Xiaobo;Shi Tingting;Zhang Shuosheng;Du Chenhui;Pei Xiangping;He Runi(College of Traditional Chinese Medicine and Food Engineering,Shanxi University of Chinese Medicine,Taiyuan 030619,China;Traditional Chinese Medicine Resource Center of Chinese Academy of Chinese Medical Sciences,Beijing 100000,China)

机构地区：[1]山西中医药大学中药与食品工程学院,山西太原030619 [2]中国中医科学院中药资源中心,北京100000

出　　处：《中国野生植物资源》2024年第11期113-121,共9页Chinese Wild Plant Resources

基　　金：山西省中药材产业体系(CZ2023018);山西道地药材品质形成机制创新团队(2022TD2009);中药资源学科(2023XKJS-23);中药资源动态监测体系建设项目(GZY-KJS-2022-013);山西省中医药管理局项目(2023ZYYB2036);山西中医药大学研究生创新创业教育项目(X2024SJ018)。

摘　　要：目的:掌握影响连翘生长的主要生态因子,对连翘在山西省的适宜区分布进行预测,为山西省连翘资源的合理布局提供参考。方法:采用山西省“第四次中药资源普查”数据库收录的连翘样点分布数据,通过查询中国数字标本馆并检索相关文献记录进行补充,将筛选后的210个连翘样点分布数据和生态因子添加到MaxEnt模型中运行,筛选出影响连翘地理分布的主要生态因子及贡献率。应用地理信息系统(ArcGIS)软件对山西省连翘生态适宜区进行划分。结果:建立的MaxEnt模型AUC值为0.908,表明模型预测结果准确,共筛选出温度季节性变化标准差、植被类型、最冷月最低温、最湿月降水量等23个生态因子,其中气候因子是影响连翘分布最重要的生态因子,其次是生物因子与地形因子,土壤因子的影响最小。山西省连翘潜在适宜区主要分布在南部山区,呈现从南到北适宜等级逐渐降低的趋势。在当前气候条件下山西省连翘最适宜区面积为12830 km^(2),适宜区面积为15467 km^(2),次适宜区面积为34410 km^(2),不适宜区面积为93993 km^(2)。结论:基于MaxEnt模型和ArcGIS软件预测山西省连翘适宜区分布状况,对山西省连翘资源的保护与合理布局具有一定参考价值。Objective:To grasp the main ecological factors affecting the growth of Forsythia suspensa.This study aimed to predict the distribution of F.suspensa in suitable areas in Shanxi Province,which could provide reference for the rational distribution of F.suspensa resources in Shanxi Province.Methods:The distribution data of F.suspensa sample points included in the"Fourth National Survey of Traditional Chinese Medicine Resources in Shanxi Province"database were adopted.Supplemented by searching the China Digital Herbarium and retrieving related literature records.210 F.suspensa sample points distribution data and ecological factors were added to the MaxEnt model for analysis.The model screened out the main ecological factors and contribution rates affecting the geographical distribution of F.suspensa.The geographic information system(ArcGIS)software was used to divide the ecological suitable area of F.suspensa in Shanxi Province.Results:The AUC value of the established MaxEnt model was 0.908,indicating that the prediction results of the model were accurate.A total of 23 ecological factors were screened out,such as the standard deviation of seasonal temperature change,vegetation type,coldest month and wettest month precipitation.Among them,climate factor was the most important ecological factor affecting the distribution of F.suspensa,followed by biological factor and topographic factor.The influence of soil factors was the smallest.The potential suitable areas of F.suspensa in Shanxi Province were mainly distributed in the southern mountainous areas.The suitability level gradually decreases from south to north.Under the current climatic conditions,the most suitable area of F.suspensa in Shanxi Province was 12830 km^(2),the suitable area was 15467 km^(2),the secondary suitable area was 34410 km^(2),and the unsuitable area was 93993 km^(2).Conclusion:Based on MaxEnt model and ArcGIS software,this study predicted the distribution of F.suspensa suitable areas in Shanxi Province,which has certain reference value for the pr

关 键 词：连翘 生态因子 适宜性区划 MaxEnt模型 ArcGIS软件 

分 类 号：R282[医药卫生—中药学]